Female fans of the show My Little Pony: Friendship is Magic who view and/ or schlick (masterbate) to pornographic fan art of the show's characters. A portmanteau of "pegasister" (the female version of "brony") and "schlick" (the female version of "fap").

Brony 1: Did you see that fan art of Rainbow Dash and Fluttershy that Jane posted?
Brony 2: The one where they were making out? Yeah, Jane must be a total pegaschlicker to get off on that stuff.